Yup, when I made the post it was not but I renamed my .json and my picture to harryPotterWand because I figured that was the case and I figured it would be easier to find the problem if everything was consistent.... however that didn't change the fact the texture is still a purple and black block. I did read your mod post a few times looking for the answer and I couldn't find it, I also looked through your files and your MBE block 10 or 11, whichever one you set the texture up in.
In my code I made it so where ever it says HarryPotterWand it is now harryPotterWand, I will re-upload the code if needed but I don't think the problem is with those lines of code